Flexible yet durable, Dura-Stick Plus Electrodes come off as easily as they go on. Designed to work with TENS and electronic muscle stimulators, Dura-Stick Electrodes provide secure, accurate connections in a reliable way. Their unique silver-printed conductor layer and white foam backing provide increased accuracy. Dura-Stick Plus Electrodes are available in the most popular and effective sizes and shapes ideal for single-patient use: 2" x 2", 2" x 3.5", 2" round, 2.75" x 5", 2" x 4" oval and 1.5" x 2.5". All sizes are sold 4 individual electrodes to a pack.