These pads have strong adhesive and won't peel off easily. ※Product Features Thanks to the completely sealed packaging, the gel inside stays moist and comfortable even in the harsh summer heat. Set Contents 10 pads: 5 sets of 2 pads each Size: 4cm * 4cm Compatible Models HV-F311 HV-F320-PK HV-F320-BW HV-F310 HV-F04 HV-F06 HV-F14 HV-F302 HV-F303 HV-F306 HV-F311 HV-F312 HV-F322-BW HV-F321-BW HV-F321-W HV-F313 HV-F314 Thermal Low-Frequency Therapy Device HV-F311 Thermal Low-Frequency Therapy Device HV-F320-BW Thermal Low-Frequency Therapy Device HV-F320-PK Low-Frequency Therapy Device Hot Elepulse Pro HV-F310 Low-Frequency Therapy Device with Thermal Conductor HV-F306 Hot Elepulse Pro