addi Click Crochet Hook Interchangeable System Addi-Click is the interchangable needle set you have been waiting for! Click together, get set go! Just click one of the 8 sizes of hooks onto your addi-click cords, and you'll be able to pick up stitches with ease, Work Tunesian crochet, bind off stitches quickly, or create entirely new stitches with a needle tip at one end, and a hook to the other. The possibilities are unlimited The patented addi plug and knit system with crochet hooks as an accessory for the addi-click system. Ideal for combi-hooks - a crochet hook on one side and a knitting needle on the other. Set includes 8 crochet hooks : 3.5mm, 4.0mm, 4.5mm,5.0mm,5.5mm,6.0mm, 7.0mm and 8.0mm Does Not include connectors or cords Designed and manufactured in Germany to exacting standards and using finest materials available Lifetime Guarantee from any manufacturer's defects