Made from EVA materials,the for case is shockproof,dust-proof and water resistant which protects your device from damage while keeping them dry and fully functional. Smooth and strong zipper enables easy opening and closing to provide enhanced user experience. Comes with inner mesh compartment to store batteries and other small accessories for your convenience. Item Type:Storage for Case for Fingertip Pulse Oximeter Fitting for:Fingertip Pulse Oximeter