Free shipping in the U.S. for orders over $50
18.8mm vs 18mm Glass Joints: Regional Sizing Explained
Why 18mm, 18.8mm and 19mm usually describe the same glass joint, how a 1:10 taper affects measurements, and which specs to confirm before ordering.
Free shipping in the U.S. for orders over $50
Tag glass joint sizes
Teach Safe Accessory Insertion Without Damaging Glass Joints
Most broken joints are not “mystery accidents.” They are size mismatches, dirty tapers, sideways force, and bad adapter choices disguised as bad luck.
This guide shows how I teach safe accessory insertion, how to measure a ground glass joint, and when a glass joint adapter solves the problem instead of making it worse.