The hunter freestyle collar and lead set is made from heavy duty polyamide in classic black both items are beautifully crafted and all metal parts are nickel plated the collar and lead are extremely durable and strong so you will enjoy using these quality products for a long time polyamide is a bite resistant and extremely durable material which is resistant to abrasion and very robust tests have shown that the lead can withstand a tractive force of up to 24 tonnes the sturdy polyamide m