5 Color/Size:Red(1/8"3mm), Dark Purple(1/4"6mm),Duck Blue(3/8"10mm),Orange(1/2"13mm),Yellow(5/8"16mm) Compatible With blades:fit all type A5 detachable blades (sizes 10/15/30) ,compatible with most Oster ,Wahl and Andis detachable-style clippers. (ONLY Snap on Size #10/15/30 Professional:guide combs for easy identification, effortlessly glide through small, medium, and large-sized dogs and cat coats. High-Quality: Made of high-quality Stainless Steel materials, Durable Easy to clean, Moderate hardness, and gives you the biggest protection CUSTOMER SUPPORTS:If guide comb set that you purchase fails to fit your blades, please contact customer service