core plugs CPR Series Suspension Plugs CPR Series suspension plugs are made from strong, high-impact resistant materials, designed to provide the strength and ruggedness required to maintain integrity when suspending very large rolls. Material: Nylon Color: Black or White CH Series Roll Suspension Channels CH Series roll suspension channels are made with high-quality aluminum and can be cut to specific lengths. Material: Aluminum Color: Silver 158 * For other material and color options, contact customer service.