Size: Outside diameter 1mm-W x 1mm-L Size: Inside diameter .55mm Soft Flex® Crimp Tubes are crafted with the professional in mind. We have constructed a crimp tube that is almost twice as thick as others on the market. The sturdier build of the crimp is enhanced by the fact that they are also seamless. Finish your next piece securely with our designer crimps.Available in Sterling Silver or 14K Gold Filled.1x1mm Soft Flex® Crimp Tubes are recommended for .010 diameter beading wire and should be crimped with Micro Crimping Pliers. Price is based on the current metal market price when goods were purchased. Note: Not for children under the age of 12.