Allpoints 262418 Threaded Stem Caster4 W 1/2-13 X 1

Expansion Stem Swivel Caster Expands To 1 1/4" Exact Stem Size = 1.175" Od Wheel Size 5" Color Grey Sealed Ball Bearing Max Load Per Wheel Lbs. 300 Tread Width 1 1/4"

Expansion Stem Swivel Caster Expands To 1" Exact Stem Size = 0.983" Od Wheel Size 4" Ball Bearing Dark Grey Hub, Grey Polyurethane Tread Max Load Per Wheel Lbs. 240 Tread Width 1 1/4"

Expansion Stem Swivel Caster W/O Brake For 1 1/2" Od Tubing Exact Stem Size = 1.461" Od Wheel Size 3" Tread Width 1 1/4" Bore 1/2" Id Delrin Bearing 3/8" Id Beige Hub, Grey Rubber Load Height 4 1/4" Max Load Per Wheel Lbs. 200

Expansion Stem Swivel Caster W/O Brake For 1 1/2" Od Tubing Also Fits 1 1/4" Pipe Wheel Size 4" Tread Width 1" Bore 5/16" Id Plain Bearing Grey Rubber Loasd Height 4 5/16" Max Load Per Wheel Lbs. 115

Threaded Stem Swivel Caster W/O Brake Stem Size 1/2"-13 X 1 1/2" Wheel Size 3" Tread Width 1 1/2" Load Height 4 1/4" Accepts Axel Bolt 3/8" Color Black Solid Plastic Wheel Max Load Per Wheel Lbs. 220