Portable: Quick, effective and portable! Bubble pop: The soothing popping sounds help relieve stress instantly! Size: 27 x 11 x 1.5cm. Sensory toys & gadgets: Get a multicolour push pop sensory keyboard. Material: Made from durable silicone. Fun: With a fun rainbow tile design. | Silicone Multicolour Push Pop Sensory Keyboard | Wowcher