Indicator, bolt & keep. The satin anodised aluminium Asec Cubicle Indicator has many DDA compliant features such as a slide bolt for ease of use with a clenched fist and a red and white indicator for easy differentiation for the visually impaired. Supplied with open in keep and rubber buffers, this product is suitable for both 13mm and 20mm board.. Slide Indicator for easy operation in compliance with DDA standards. Coin release on indicator for easy emergency access. Suitable for 13mm and 20mm board. Red and white indicator