When designing, installing, and using a stainless steel railing system of any kind, it is essential that you have the proper rubber spacers for the glass components of the railing system. Without the proper rubber spacers between glass plates, the dangers of slippage occur, which can easily cause injury to those leaning against or otherwise using the railing system. This IAM Design rubber spacer fits within 1-2/3Γǥ handrail, making it suitable for a variety of IAM Design stainless steel and 1/2" to 5/8" glass railing systems, but if you are unsure as to whether this is the appropriate rubber spacer for your railing system, make sure you or your contractor calls Indital at 1-800-772-4706.