Packing materials; stopping materials; insulating materials; shock absorbing buffers of polymer; gaskets; packing materials of rubber or plastic; padding materials of rubber or plastic; plastic stoppers; seals; shock absorbing buffers of rubber or plastic; sleeves of plastic for protecting plate glass and sheet glass and sheets of granite, marble and steel; reuseable resilient polymer cushions for use in handling, transportation and installation of plate and sheet glass and sheets of granite, marble and steel to minimise the risks of chipping, breaking, scratching and damage