Vink 1.8m Calving Aid Alternate Leg Traction Animal Handling The Skellerup Quatro safety welly 10053654 10 The Skellerup Quatro safety welly features a 4mm neoprene lining to keep your foot insulated against the cold and a steel toe cap and fibreglass midsole for unbeatable S5 standard protection allowing you to confidently leave it in the cattle pen without fear of it being cracked or broken by the more energetic calves Part of the complete Calving Jack The Vink Alternate Traction Calving Aid is a stainless steel calving aid with an alternate traction ratchet which allows for legs to be individually pulled for greater control over the calving process which will ultimately make it smoother and more straightforward