DescriptionEasy to install: there is no need to install extra tools, it equips a hex key in each window locks, holding on the track by key control. Durable material: it is strong, solid and sturdy, exquisite workmanship, aluminum alloy frame and stainless steel screws that can be reused many times.Features- Color: As shown. - Material: Aluminum alloy. - Size: 3x2x0.3cm. - Easy to install: there is no need to install extra tools, it equips a hex key in each window locks, holding on the track by key control. - Durable material: it is strong, solid and sturdy, exquisite workmanship, aluminum alloy frame and stainless steel screws that can be reused many times. - Wide usage: can be easily applied to most environments; the burglar-proof and thieves can prevent children from falling while improving air circulation.
