The Parallax Plastics brand, which offers products such as enrichment balls for horses, belongs to Parallax Plastics Ltd, a UK-based company. Founded in 2012, it specializes in the design and manufacture of innovative solutions for enriching and feeding horses, such as slow feeding systems to improve digestion and reduce forage wastage. Its products include items such as the Hay Play Ball, which has become popular for horses and other animals such as ponies and goats