Brightsky 24" 36" 48" 60" Aquarium Light Suspension System Tank Bracket Hanging Kit Aquarium Light Suspension System is rustproof Easy to install The maximum weight these suspension systems can hold is 50kg The system attaches to the glass walls of your tank and can be easily adjusted to house smaller lighting units Lengths available are 60cm, 90cm, 100cm, 120cm, 150cm and 180cm - all models are actually 10cm longer than stated to ensure that they will fit your tank