Learning Resources Primary Science Jumbo Droppers with Stand. These oversized and colourful science tools are ideal for little hands to grip while supporting hands-on observation and investigations. The easy-to-use droppers will encourage experimenting with volume and cause and effect as well as developing young children’s fine motor skills as they squeeze and release to select liquid. Droppers measure 11.5cm L. Set includes useful plastic stand to store droppers in place, 11cm W. Suitable for ages 3+