By LEON WATSON
A boy with a rare condition meaning he can't resist eating wall plaster has been given a unique birthday present - an inedible bedroom.
Zach Tahir is celebrating his sixth birthday today, and his new bedroom has been unveiled after he gnawed through the walls of the last one.
The youngster suffers from the rare condition Pica, which causes him to crave inedible objects, including stones, paper and moss.
Happy birthday! Pica-sufferer Zach Tahir is celebrating being six today with a new bedroom he can't eat
Zach suffers from the rare condition Pica, which causes him to crave inedible objects, including stones, paper and moss
But his craving for the things around him went to a whole new level when he began to chew through through plasterboard and nibble through his blinds.
Mother Rachel Horn, 32, said: 'There's no limit to what he will try and eat.
'We don't know what appeals to him about the objects around him but there's nothing we can do to stop him trying to chew through anything and everything.'
Zach's new bedroom has been uniquely designed with squash-court walls that due to their tough shiny surface, means he won't be able to gnaw at them.
And, the room has been kitted out with fool-proof furniture that he's unable to sink his teeth into, with slanted window sills to stop him climbing.
Ms Horn said: 'His wardrobes and chest of drawers have been made with rounded edges and installed so he can't pull them over.