Losmandy Complete OTA counterweight system. Fits Celestron 8 or Meade 8 Schmidt Cassegrain tube assemblies. Dovetail mounted, dual axis movement, 2.5 lb weight. Mounts to existing holes. Ideal for counterbalancing piggyback mounted SLR's and CCD imaging assemblies on fork mounted scopes. Part Number WS C8/M8. Brand new and still in the bubble rap. Sale due to having purchased this item in error. Will sell for £45 plus shipping.