These easy-to-hold large size nuts and bolts are made from sturdy plastic and very durable for classroom use. \r\nIdeal for children to develop fine motor skills.\r\n60mm, 4 shapes and 4 colours. 32 pieces in a sturdy PET storage jar.\r\nAges: 3+ years\r\nWarning: Choking hazard- small parts. Not suitable for children under 3 years.