Luxaflex® Essentials Range of Vertical Blinds offer a simpler approach to vertical blinds. Only available in 89mm vanes in a variety of colours, textures and fabric transparencies. Luxaflex® Essentials Range of Vertical Blinds are available with a choice of two easy to use control systems with simple clean white components. Child Safety - Safety Devices Control Lengths As a requirement of the new Child Safety standard EN13120, the maximum control length is determined by the safety device used on the product as well as the drop of the blind. The controls on a blind up to 2.5m drop will be a maximum of 1m in length. The controls on a blind over 2.5m in drop will be 1.5m shorter than the blind drop.