Top Selling Educational Build Your Own Room Alarm Lab Rainy | Desertcart Hong Kong
Top Selling Educational Build Your Own Room Alarm Lab - Rainy Day Activity - Circuit Board Science Set Ideal Present Gift for Christmas Xmas Stocking Filler Birthday Easter or Treat Reward or Pocket Money Idea Toys & Games Age 8+ Children Kids Boys Girls
产品编号: 51361225
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描述
Discover how a real burglar alarm works by building a working alarm.
Trespassers are caught "in the act!"
Door knob sign included.
Alarm: 3½"W x 3½"H - 1-9V battery required. Not included.
