Truck and trailer fixed-length security seals or 'ring seals'(due to the fixed loop they form when sealed) are ideal for a range of transport operations - including road and rail. Ring seals are also referred to as truck seals and trailer door seals, as their main purpose is for use as an anti-tamper security seal on HGV trailer door locking hasps and curtain sider buckles... Truck seals are also suitable as an indicative security solution for petrol / bulk food / liquid tankers and shipping containers. Our ring seals are designed to be easily applied and removed without the need for tools, as they break by hand with a sharp tug. Fixed length seals also include a range of specialised seals for sealing of attached lid containers and barrels, such as plug seals and drum seals.