Real users of a jewelry box on the original site reported needing overnight bedside storage and lids that no longer fit after scaling up. This model's own design: a full-floor suspended bridge insert with a matching located lift-off lid, configured by ear face, post, fitted back and real clearances; the original source does not include this mechanism; its ripple appearance and third-party files are not copied. Not universal for all stud earrings; backs that sit tight against the ear must be moved back securely before measuring, and nothing is generated if the conditions are not met.

Listed part dimensions are outer bounds; usable interior space is given in this model's specifications.

The ZIP contains the complete STL and STEP files, a size list and notes. Version 1.0.0 Use the complete set of files of the same version and size for matching parts. Preview colors are for reference only; STL files carry no color.

Ranges are set by this model's structure; each combination must pass the studio's structure checks; matching parts update with the parameters.

1. Full printed BOM: 1 outer box, 1 full-floor twin suspended bridge lift-out insert, 1 skirt-located knob lid; 3 parts in total; no mounting hardware, axles, glue or soft liners to buy. The stud earrings are stored items, not extra parts to install.
2. Reference full load: 4 pairs, 8 straight-post earrings with backs fitted; ear face round envelope Ø10 × 4 mm, center offset ≤ 1 mm along the column; post Ø1 × 12 mm (measured from the ear face bottom to the tip); back Ø6 × 3 mm; measured clearance from the ear face bottom to the top of the back: 5 mm. Before inserting, turn the ear face offset toward the column direction; either way along the column works; try other placement directions with real items first. For shapes other than cylinders, recheck with the maximum envelope; fit is not inferred from brand.
3. The current suspended bridge is 4.2 mm thick with a 1.7 mm clear post slot; nominal 0.8 mm from the bridge bottom to the back top; the post tip is 2 mm above the insert floor, and the lowest point of the back 6 mm (at least 2 mm). If the back sits tight against the ear face so the clearance is too small, first move the back away while keeping the earring secure and measure again; if that cannot be met, it is not suitable; the condition for a 1 mm pin entering the back is a geometric reference only, not a verified holding force.
4. Each time, grip the knob on the lid top, lift the whole lid straight up and set it aside; hold the insert's grip posts at both ends with both hands (two full Ø10 × 18 mm fingertip references per end), lift the fully loaded insert straight out and move it to a flat table. Do not load or unload earrings from the side inside the tall outer box.
5. With the insert on the desk, two full fingers come straight down to grip the gaps on both sides of the ear face along the column, and the complete ear face/post/back slides in horizontally from the open outer end of each bridge; the closed end supports the ear face, with the post and fitted back left under the bridge. Slide out from the mirrored left and right outer sides; no need to take the backs off every night; secure earring backs and posts, smooth sliding or direct fit for every wearing state are not guaranteed.
6. The whole insert rests on the outer box floor with 0.35 mm nominal single-side clearance; the matching lid's locating skirt is linked; no part scales independently. The insert grip post stands 18 mm above the reference ear face; nominal clearance under the lid is at least 2 + g, and the lid stops on the box mouth. The open-ended slots do not clamp jewelry, and the static dust cover has no latch; no inverted/carrying slip-out protection, mixing prevention, sealing or waterproofing is promised.
7. The outer box, insert bottom and lid top can serve as print references; the insert's suspended bridges and the lid knob/locating skirt need real support, orientation and slot cleanup checks; support-free printing cannot be claimed. Test the fit with a small interface sample first; check slicing before printing; before use, test-print to check scratching of jewelry by hard printed parts, earring back retention, strength, tolerances and wear.
8. Suggested colors: cream/berry/coral, midnight blue/mint/ivory, sage/rose clay/off-white, lavender/apricot/misty purple, graphite/copper/warm gray, lake blue/saffron/light sand; colors do not change manufacturing size or count as new models.

Import into your slicer in millimeters and check build volume, orientation and supports for each part. Test-print lids, drawers and connectors first, and print the full set once the fit is confirmed.