Size: 10W broad blade ( Cut length 1 1/16 in);30W broad blade (Cut size zero 1/50");40W vast blade (Cut length 0 1/100");4FW vast blade (Cut size 9 3/8");5FW extensive blade (Cut length 6 1/4");7FW vast blade (Cut size three 1/8"); Compatible with Andis:UltraEdge/CeramicEdge series AG, AGC, AGP, AGRC, AGCL, AGR Plus, AGRV, AGRV, DBLC, MBG, SMC, Versa; Compatible with Oster:A5,A6, Golden A5, Turbo A5, Power Max, PowerPro Ultra Compatible with Wahl: KM2, KM5, KM10 Series 440C blade made from stainless steel, the blade is sharp and hard, water resistant and won't rust. It is more heat-resistant than the traditional carbon metallic task and fewer noisy when used