Pedifix Firm Heel Cup Large 6 Pair Fits W 8+ M 6+ Reusable Briefs and Panties * Easy height adjustment with stretchable sides so you * Easy height adjustment with spring loaded plungers and numbered height strip NOTE: Class II Rx Required The InTENSity IF Combo combines TENS and Interferential treatment giving you the best chance of treating patients that need something stronger than TENS therapy alone Firm plastic construction * Gently squeeze fat pad under the calcaneus to utilize natural cushioning shock absorption * Disperses heel strike shock over the entire heel area * Help ease heel and plantar fascia pain * These hard plastic heel cups cradle fat pad tissue under the calcaneous to utilize natural cushioning and shock absorption and disperse shock * Non retail bag