Strap 150 cm for Petzl Naja adjustable friction saver 

Petzl Eject - removable strap designed for use with Petzl Eject.
It can be used to replace the original strap or to connect two straps to extend the friction drive and allow operation on larger diameter trees.
The color is yellow for good visibility on the tree, available in two lengths: 150 and 250 cm. 
It has four different adjustment positions at 1.5 m and six positions at 2.5 m.

Specifications:
- Length, cm:  150 (4ft 11.1 in)
- Weight, g:  140 (4.9 oz)
- Material (s):  polyester 
- Made in the EU
- Reference:  https://www.petzl.com/INT/en/Professional/Anchors/Strap-for-NAJA

Petzl
Whether you are involved in working at height, industrial mountaineering or simply an avid caver or climber, you are no doubt already familiar with Petzl products.
Today, PETZL is the world leader in the production of products for climbers and cavers, with about 200 patents and ISO 9001 and UIAA quality certificates.
All Petzl products are made of modern high-quality materials, which creates the perfect balance of weight, reliability and user comfort.
Many well-known athletes, including skiers, climbers and professional cavers, choose Petzl equipment exclusively.
When you pick up any Petzl product, you will feel the highest quality, thoughtfulness and craftsmanship.
The company's distributors operate in more than fifty countries.