Rio Grande Single Vented Aluminum Mold Frame Dimensions:47.625 x 73.025 x 19.05mm The sterling silver round jump

The sterling silver round jump rings in this assortment are ideal for attaching drops

4mm closed ring stations

you can file or shape the nylon to suit a particular task

A hand rest designed to slide onto the back plate

matte finish of the modern black acrylic display highlights any metal type and style of jewelry

Rio Grande Single Vented Aluminum Mold Frame Dimensions:47.625 x 73.025 x 19.05mm The sterling silver round jumpThis Rio Grande aluminum mold frame holds a single mold and a vented design allows excess rubber to escape, preventing model deformation when using natural rubber. The frame accommodates 1 8" sprue rods. Rio Grande mold frames are made from solid aluminum bar stock that resists warping even after repeated heating and cooling. Carefully machined within tight tolerances, these frames feature precision milled openings with smooth, parallel walls.