Features: *Radiator socket wrench: 1/2, 3/8, 3/4, 1-1/4 inch ratchet socket spanner.*Premium material: Made of high-quality Carbon steel material with high hardness and durability.*Easy to use: The stepped radiator wrench mounts directly onto the 1/2" ratchet wrench. *Multifunctional application: radiator spud wrench fit installation and removal of most pipe and radiator components such as radiator valves, return fittings, thermostats and drain fittings, . Specifications:*Product Name: Stepped Radiator Spanner*Material: Carbon Steel*Color: Silver(As picture show)*5 different step sizes: 3/8” (10mm), 7/16” (12mm), 1/2" (13mm), 16mm and 21mm*Type: Fit for 1/2" Ratchet handle Package Contents:1*Stepped radiator spanner Note:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.