One product that we really like is the Whisper Glide, part # KWG100. They are a carpet glide that you glue on to your classroom chairs. The package includes 120 Whisper Glides and a tube of glue. You can also purchase the glue separately. The response on this product has been overwhelming.
The WHISPER GLIDE COMPANY is a division of CHILD ADVOCATES INC. Established in 1982.