DESIGN & ASSEMBLY: Temperature sensitive, scented, and color changing skate guards Skate guards change color when exposed to the cold ice in the arena Springs make it easy to stretch the guards over your blades to put them on, take them off, and hold the guards in place when you walk Deluxe two-piece figure skate guards Guards come in four pieces with springs and Phillips-head screws included for easy assembly Top notch design is easier to cut down to size