A combined cylinder trolley and lifting cradle with 50mm dia. eyelet.2 sizes: 180-230mm or 230-305mm max. cylinder dia.412260 is suitable for BOC sizes G (3400 ltrs.) and J (6800 ltrs.) oxygen gas bottles.412261 is suitable for BOC size J (6800 ltrs.) oxygen gas bottles.Top and bottom steel cylinder retention chains.On 200mm dia. solid rubber wheels.Red epoxy painted steel.150kg capacity.Made in UK.