30 x Lead Test Swabs. 【Wide Applicable】Instant lead test kit can be used in toys, woodworking, tableware, jewelry, bathtub glaze, pottery, antiques, and water pipe surface to provide instant test. 【Convenient to Use】Shake off the excess liquid on the cotton swab by hand, make the tip of the swab mustard yellow, quickly use the lead test stick to rub the painted surface for 30 seconds, and observe the color change, easy to use.
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