AbleNetBuddy Button Switch Yellow - Assistive Technology Interactive Switch for Communication and Accessible Play - Product# 57500

This is a useful product that is fairly sturdy. If however, you lay the wire over an edge (a table or a headrest edge, for example), you may find that the wire's insulation frays easily. Sturdier insulation and beefier wire-to-button attachment would go a long way toward improving this product.