This SP M Lavender (Rosco colour code 343) coloured T8 LED tube sleeve accessory has been carefully designed to suit most brands of T8 LED tubes that are 32mm diameter. It has a length of 6 foot (1800mm) and is an easy solution for changing the colour of your light for events parties and gatherings. To install this product you must remove your current T8 LED tube and then slide over the transparent retention sleeve (with coloured insert) and then reinstall your LED T8 tube. Please be aware that this product does not come with end caps (not required) and is not suitable for any type of fluorescent tubes.