This special block was designed and developed for marinas, scaffolders, builders and any engineer who needs multiple lift options at a given worksite. Manufactured of black glass filled nylon and stainless steel, this durable Series 7 precision plain or ball bearing sheave block is CE certified for secure quality and compliance. The stainless steel becket at the base provides leverage when required. The attached Dyneema spliced strop can be slipped around a pole, tube or bar to create a bespoke lifting device for tools, equipment or panels - and then removed or relocated when the job is complete.