FEATURESFood grade BPA-free Thermoplastic Polyurethane (TPU) materialsFully welded anti-tear constructionAnti-microbial and anti-fungal7mm diametre and 97cm long insulated feed tubeSoft durable silica gel bite valve mouth piece with easily controlled on-off mechanismSPECSCapacity: 1.5LDimensions: 35 x 18.5cmWeight: 70gCapacity: 2LDimensions: 40 x 18.5cmWeight: 80gCapacity: 3LDimensions: 50 x 18.5cmWeight: 90g