Specially designed to fit  SQUARE sled based chairs measuring 1/2" (12mm). 

Once the unit is installed properly it is very difficult, almost impossible,  to remove. 

Our sled base models offer unsurpassed floor protection with the largest surface contact area on the market. 

Our patent pending antiroll system is guaranteed to keep the Flexi-Felt® well aligned.

 The product is guaranteed for 5 years.

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