Here is a pair of weather proof bags made to be filled up with the seas water and be used as extra weights when training at the beach with the VRE ( VERYREV RECREATIONAL EQUIPMENT) BARBELL. This special item in our store holds two bags that hold 2L of water and can be folded and sealed by cliping in its accessaries. It also have a handle strap for each of its bags to be used when needed it to hang at the ends of the barbell. ENJOY!