One size fits most - suitable for older kids and adults. Safety glasses are made using plastic and measure 13cm wide x 5cm tall x 3.5cm deep. Arms slide to fit your face and measure 8.5cm - 10.5cm long. Glasses are lightweight and sturdy, have retractable temple control capabilities and feature super clear lenses. They do not provide any UV protection. Suitable for indoor and outdoor use. This safety eyewear makes the perfect costume prop for your Construction or Science Laboratory Party or the perfect tradie tool for work or home renovation projects.