Janet Collection 100% Remy H.H Body Wave Pre Glued I Tip 18 Inch [D]Janet Collection 100% Remy H.H Straight Pre-Glued Tip 25 pcsCan be used with heat or Without Heat (using micro Ring method)100% Remy Human HairTangle Free, instruction included(inside the pack)No Heat Method requires Micro Cylinder Ring for Ez-WeftPre-Tipped with kratin based glue