The outside is a fascinating place to be especially with the aid of one of these Magnifiers. Everything from flower petals to bugs can be placed inside the clear tub and examined with ease providing different learning experiences each time. Measurement markings on the side of the tub allow students to measure liquids such as rainwater.Magnification is 4xIdeal for scientific enquiry as well as fun and active play.Perfect for inside and outside activitiesIt will help to improve dexterity and hand to eye co-ordination too.Dimensions: Length 8 cm width 8 cm height 7 cm.