SKYLOTEC automatic fall arrest blocks are light and compact and provide the maximum in functional safety and durability. -The spring return is very small, weighing just 1.5 kg. -The housing is manufactured from break-proof ABS plastic. The interior is made of saltwater-proof aluminium. -The carabiner is equipped with a fall indicator. -The cable is 5 mm thick and made of steel. The maintenance costs are low and the professional inspection, required annually, can take place without opening the device. The devices are also approved for horizontal use according to RFU (recommendation for use) in combination with the shock absorber package..