"UNIVERSAL GOBLIN HOLE Aquus M: Length: 7.5 inches Useable: 6.5 inches Max Circ: 6.5 inches Min Circ: 5.5 inches   **NOTE: This product is made with Near Clear Ecoflex silicone and will therefore discoloration is more obvious (not more likely) than regular cloudy silicone. Please use extra caution to avoid staining with oil based lubes and bodily fluids. Boiling for long periods of time is not recommended. Please read our FAQ for additional care instructions."