Features: Make of Silicone Materials, this Scubas pressure gauge boot ensures durability. This Highly Pressure gauge protective case is specifically designs for diving purposes. The cover help protect your gauge from scratches and general wear and tear. The gauge protections cover is suitable for gauge with a diameter of 5.0cm/1.97inch and a height of 2.50cm/0.98inch. The pressure gauge cover have rings on the left and right side of the top to allow a clip or lanyard to be attach. Specifications: Materials: Silicone Color: Green/Pink/Black Length: about 12cm/4.72inch Inner diameter: about 5.0cm/1.97inch Package Includes: 1Pc Submersible Pressure Gauge Protectors note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.