Description: 【Premium Material】Lane Line Tensioner for Swimming Pool is made of ABS and 304 stainless steel materials, which is sturdy, anti scratch, high temperature resistant, flexible to tighten and has a long service life. 【Adjustable Tightening Shaft】Lane Rope Tightener's stainless steel S hook and stainless steel tightening shaft control the tightness of the pool lane line through the tightening shaft. The tightening shaft can be adjusted by 15CM. 【Easy to Use】The pool lane line rope is directly passed through the hole at the back and fixed on the tightening shaft, and the tightening can be adjusted. 【Wide Application】Pool lane tightener is suitable for tightening and straightening swimming lane lines and straightening ropes in daily life. 【Product Size】The overall size of Pool Lane Rope Tightener is 33cmx5cm/12.99inchx1.97inch (including hook), of which the S hook is about 3cm/1.18inch long. Good workmanship, impact resistance, compact and portable. Specification: Material: ABS, 304 stainless steel Size Chart: 33cmx5cm/12.99inchx1.97inch (including hook) Package Includes: 1x Lane Line Tensioner for Swimming Pool Note: Please allow slightly errors 1-2cm differences due to manual measurement.