The plastic-enclosed eyeglasses are included in eye protection, so children will not hurt their eyes or faces. The telescope is equipped with a lanyard, which can be worn around the neck and will not be lost. 30MM objective lens, with clear image and high brightness, makes children more comfortable in observation and broadens their horizons. Central focus wheel focus, make observers clear. Comfortable appearance, humanized design, baby holding in hand observation comfortable and convenient. Complies with CPSIA. 3.94" L x 3.35" W x 1.97" H