The #1-Trampoline Spring Pulling Tool- Helps To Install Springs- Trampoline Part Store PE Imported The #1-Trampoline Spring Pulling Tool- Helps Install Springs TrampolinePartStore The grip is the perfect shape and size, the T-Hook design is comfortable and large enough to provide plenty of room for a nice firm grip Supports all brands & all length of springs-This hook attaches to trampoline springs to make assembly easier Made of: All Galvanized Steel-Product Dimensions: 5" x 4" Trampoline Frame, Springs, Jump Mat, Safety Pad & Enclosure Poles are not Included in the purchase.