Gold Square Box Clasp 2.2mm x 8.0mm Glendo GRS The lenses are made of

The lenses are made of high-quality fiberglass-filled plastic and are fully interchangeable

These are the exact same machines as the Kerr Maxi Electro-Melts

8mm opening for standard chains and cords

Compatible with John Frei workbenches or custom fitted to your own bench

Gold Square Box Clasp 2.2mm x 8.0mm Glendo GRS The lenses are made ofThis square box clasp measures 2. 2mm x 2. 2mm square and 8. 0mm long, offering a clean, low profile closure for fine necklaces and chains. The two part design features a tang that clicks securely into the box section, then locks in place with a figure 8 safety for added security. Two closed rings are included, ready to attach directly to your necklace design or chain. Made in the USA. Features Square profile box clasp: 2. 2mm x 2. 2mm square, 8. 0mm