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4-1/4 x 5-1/2 Inches
Demonstrate that sound requires air to travel through with the Bell in Vacuum Jar set
changing seamlessly in response to your touch
This unit includes fixed upright MDF dividers to help keep books neat and upright
and it features a rose brass leadpipe
Profile, CLEAR PERSPEX BOARD 237213 4-1/4 x 5-1/2 InchesClear Perspex (indoor outdoor) ideal for painting directly onto surface wipe clean. All boards also have clips so that you can attach paper or card for painting, drawing etc. , Raw Materials: Manufactured from 5mm thick clear perspex. Tested to relevant safety standards, Dimension : 600 x 600 , Age range : Ages 2+