‎9.92 x 8.19 x 3.74 inches

【Protect Baby’s Head】Baby Head Protector Helmet offers most ideal protection for toddlers during crawling/playing/standing.It can effectively protect the baby during the collision and the friction caused by the bump and fall. Also suit for daily indoor/outdoor use.(Not suit for biking.) 【Protect Baby's Knees】Baby Knee Pads protect baby's knees from bruises and scrapes when they are crawling or learning to walk. The pad with silicone anti-slipper points makes your baby more stable while crawling. Three kinds of color easily matches baby's clothing. 【Age Adjustable】The baby protector helmet for baby ages 6 to 36 months.Weighs just 3oz with thickness an inch, lightweight and breathable.The knee pads are unisex and fits most babies, usual for 6-24 Month Baby.