With a length of 1800mm (6 ft) this primary red coloured LED tube sleeve is a great solution to changing the colour of your existing LED Tubes light output. It is 32mm in diameter which is capable of fitting most LED tubes (please check your make to ensure they are compatible). The coloured insert is officially classified as colour 106 which can be researched to ensure that this particular shade of red is needed. Due to the products odd diameter (32mm) it is not compatible with end caps and will not fit a T12 type tube. It is important to note that this comes as a clear sleeve with a separate coloured plastic insert.