Replacement trampoline spring padding by Plum Products for 6ft Trampolines. Suitable for all 6ft trampolines manufactured by Plum Products & other 6ft trampolines with with 5.5 inch (135mm / 140mm) springs. Spring padding is made from closed cell foam to exclude water. Padding extends over the mat surface so there is no chance of jumpers landing on any exposed steel frame or coming into contact directly with the springs. The trampoline pads are securely tied to the frame to ensure they are always in the correct position & are UV treated to protect against harmful rays from the sun.NOTE: To measure the length of your sping, see the image.NOTE: To measure the size of your trampoline, see the image.