KOUBA Duo 1-6

Climbing nuts Kouba Duo in Set 1-6 with different sizes. 

Specs: 
* Size 1 = range 6-10.5 mm, weight 15 g 
* Size 2 = range 6.8-11.5 mm, weight 16 g 
* Size 3 = range 7.8-12.5 mm, weight 17 g 
* Size 4 = range 8.7-13.5 mm, weight 23 g 
* Size 5 = range 9.8-14.5 mm, weight 25 g 
* Size 6 = range 10.6-15 mm, weight 28 g 

Strength: 3-10 kN 

Material: hard aluminium alloy, steel rope 
Made in Czech republic.