Professional tree climbers (also known as spikes, spurs and hooks) from Buckingham. Buckingham Bucklite titanium climbers are made from high strength titanium alloy, making them incredibly strong and lightweight. TB95089 climbers come with 2-3/4" (64mm) replaceable gaffs which work well for general tree work. They have top sleeves that will adjust from 16-1/4" (42cm) to 18-3/4" (48cm) to match your calf length. These climbers come complete with bottom nylon leg straps. Sold in pairs only.