NICKEL Spot Test 2 solutions x 10 ml. Sensitivity to nickel in jewelry, watchbands, keys and other common items. The Spot test detects free nickel down to a limit of 10 ppm (parts/million). The sensitivity threshold of most nickel allergic patients is above 11 ppm. Simple to use: Moisten a cotton-tipped applicator with two drops of the first solution, add two drops of the second, and rub well on the object. The swab will turn pink if available nickel is present. Nickel allergy is one of the most common causes of contact allergic dermatitis. In affected individuals, dermatitis (eczema) develops in places where nickel-containing metal is touching the skin. The most common sites are the earlobes (from earrings), the wrists (from a watch strap) and the lower abdomen (from a jeans stud); the affected areas become intensely itchy and may become red and blistered (acute dermatitis) or dry, thickened and pigmented (chronic dermatitis). Shipping fee: Europe Cost Each additional item Delivery time (Approximately) AirMail FREE FREE 5-7-14 days International Cost Each additional item Delivery time (Approximately) AirMail FREE FREE 10-14-20 days Payment: PayPal and Skrill Returns Returns are available