Still in 4 lengths but now with the possibility to change between 1 dog or more. The expander part is black and with 8 mm (15 kg) or 10 mm (18 kg). The weight is the number of kg required to fully expand the line. Then you choose the color (9 different) of the butt rope for the dog. You can also choose the type of hook you want. If you want 2 and 3 dogs, order extra pulling ropes and hooks. Towing ropes for: 3 m order towing rope 1200 mm 2,5 m 700 mm 2 m 900 mm 1,5 m 400 mm Link: https://www.vildmannensdrag.com/sv/dragtampar/dragtamp-6-mm-reflex-trimlina.html

The expander part is available in 2 lengths and 2 different resistances. Short: 75-105 cm Long: 95-175 cm Resistance 8 mm/15 kg, 10 mm/18 kg