Introducing the Poly Caster kit for RealPresence Group Series Media Centers. Supported on dual 43inch, single/dual 55inch and single 65inch display. Set of 4, 2 locking for use in front, 4inch casters. | 2675-52709-001. As an Authorised Poly Partner, we offer the best price and excellent service. Our dedicated team is here to find your perfect solution. Request a quote or contact us now for prompt assistance.