Tenscare cm505100 carbon mesh electrodes are self adhesive can be reused up to 30 times universal connectors compatible with most tens brands resealable packet to retain freshness hypoallergenic and latex free these electrode pads are suitable for use with all tenscare products with the exception of mamatens and ova their universal fitting means that they are also compatible with most other tens brands each pad measures 50mm x 100mm 2 x 4 and comes in a pack of four each