This is a Pop It spider and web mould set for cake decorating. 

The set includes two food-grade ABS plastic moulds: one large web and one small spider. 

It is designed to create detailed, embossed designs for cakes and cupcakes. 

The moulds work well with fondant, gum paste, or modelling paste. 

The approximate sizes are: web (6cm x 6cm) and spider (3cm x 2.5cm).