Customers have to make a one-time purchase of SS1014K, Stick and Stretch 10X14 Starter Kit, which contains: 4 corner braces (blue), a bottle of archival white glue, spare corner pins, 1 10x14 ractice frame and instructions. The corner braces last for years and work with every format of the Standard (SS) sticks. There is a separate starter kit for the Pro version of the sticks.
for details, specs & description on manufacturers site.
UPC: 00700007712004