Pollywog Tension Kit MACH / Monarch Tension Kit (3/8" Rod) MACH Series Tension Kit (1/4" Rod) Echo Tension Kit (3/8" Rod) Echo Tension Kit (1/4" Rod) Hopper Tension Kit (3/8" Rod) Hopper Tension Kit (1/4" Rod) King Bee Tension Kit (3/8" Rod) King Bee Tension Kit (1/4" Rod) Queen Bee Tension Kit Worker Bee Tension Kit Firefly Tension Kit (3/8" Rod) Firefly Tension Kit (1/4" Rod) Bullfrog Tension Kit (3/8" Rod)