Features: Contains 400pcs silicone rings, 101pcs protector shields, 1 hook needle and 1 loop needle. The soft silicone rings are perfect for feather and hair extensions without damage your hair. The rings can hold your hair tightly and will not easily get slide when wearing. Hook needle is used for pulling the natural hair through the micro beads. Loop needle is used as a threader, which makes the hair through the micro beads easily. The protector shield is used to protect your hair from hurting during hair extensions.