- High-quality precision finish in a special lead-free alloy, conical-shaped. - Thread made similar to that of a modern self-tapping screw. - Gold-plated screw posts electrolytically plated with a thick layer of 24 K gold. - Assorted Set with 12 screw posts of each size (S1 - S2 - S3 - S4- M1 - M2 - M3 - M4- L1 - L2 - L3 - L4 1 hollow key, and 1 cross key.

Country of Origin: Russia