Specification: Material: Plastic Color: White, Green, Blue, Orange, Rose Red (Optional) Length: approx. 31cm / 12.20" Product Size: 37-42 yards: can be directly put on 33-36 yards: need to cut off a section of plastic with a saw according to the length of the ice blade and move the spring position Not suitable for size 42 and above Package Weight: approx. 205g Quantity: 1 Pair Package Includes: 1 Pair Ice Skate Blade Guards (Not including ice skate shoes) Note:  1.Be sure and remove them before stepping onto the ice, otherwise you will fall spectacularly!  2.Place them on the outer ledge near the ice door while you're skating.  3.Retrieve them when you step off the ice, but be sure and wipe the snow from your blades before you put the guards on. Also, use a toothbrush to clean them out from time to time, otherwise the collected dust and debris will dull your blades. 4.when you take them off, never store them in hard guards.