What to expect. Made PLA (PETG on request), dimension-true to about ±0.15 mm — a made spacer, not a ground one. Bores and holes are cut 0.2 mm over the size you type because machines make round holes slightly small; if a bolt must slide freely, type its clearance size (M6 → 6.5). Thickness is made of whole 0.2 mm layers, so 1.5 mm is made as 1.6 mm — the page tells you. Not for load-bearing, hot (> 50 °C) or wet-and-loaded jobs; ask us for PETG or nylon if you need more. Outer diameter up to 200 mm; shims up to 250 × 200 mm.