The Kreg PRS3090 4-Piece 3-inch Dual Locking Caster Set adds true mobility to your Universal Steel Stand. Includes 4 Heavy-Duty casters. Dual-locking mechanism protects against caster roll and pivot. Casters will not move out of place once locked. Features: * Mobilizes your Universal Steel Stand with four casters * Dual locking wheels keep stand stationary What"s In The Box: * Kreg PRS3090 4-Piece 3-inch Dual Locking Caster Set