Hy Tractors Rock Grooming Rucksack Navy. Add the Tractors Rock Grooming Rucksack by Hy to your little one\\\'s favourite grooming collection. With the addition of a body brush, dandy brush, face brush, hoof pick, mane comb and curry comb with a fun tractor design on each, the Tractors Rock Grooming Rucksack is certainly going to be a farmer fan favourite. With the addition of a handy rucksack to carry all the grooming essentials, the Tractors Rock Grooming Rucksack is complete with contrast colour shoulder straps and a zipped opening for security.