HSI Mouth Prop Adult Tan Disposable Autoclavable Silicone 2/Box Packing:2/Box Product Features Specifications Usage Instruction – Child and adult sizes have a stainless steel insert for structural integrity– Autoclavable– Steam-gravity sterilization for 30 minutes at 250F– Not made with natural rubber latex Age: Adult Autoclavable: Autoclavable Color: Tan Composition: Silicone Disposable: Disposable For: Structural Integrity Item: Mouth Prop With: Stainless Steel Insert