1.One piece rotomoulded part . 2.FDA approved LLDPE material . 3.UV resistant . 4. Durable with PU inside . This prodcut made from the latest technology -rotational moudlding or Roto Molding which is a high temperature, low volume, low pressure thermoplastic forming process .It mainly suite for producing hollow, one piece parts such as large oil or chemical tanks, kayaks, point of purchase ...