E-IMAGE HS-03W 360° rotatable locking caster wheel, in a set of three that fit heavy duty stands or similar stands with 25*25mm square legs.Each caster has a foot-activated braking lever.
25*25mm Locking Wheel Set
For stands: 9109A PLUS / 9109B PLUS / 9109C PLUS / HS02 PLUS / HS03 / HS05 / LS-B17
* For HS03, there is extra operation needed.