Material: plastic Feature:20strings per pkt. You can make things from the scobies by weaving them in criss cross patterns. You can make square, circle and Chinese stair patterns. With these you can make lots of things, like, bangles, key rings, and pens.You can buy scobie books to help.It can be quite tricky and challenging, but is is great fun Size:90cm-100cm long per string x 1.5mm thick