SparkMarks High-Capacity NFC Adhesive Tags (5x Durable, Water-proof NFC Tags, with Topaz 512)
These smart-looking NFC SparkMarks tags have an adhesive back with peel-away liner.  Just stick them wherever you want.  Then touch your NFC-enabled smartphone to perform tasks that you define.Places to Stick Your NFC SparkMarks:- By your bed to set your alarm- In your office to quiet your phone- In your car to launch your navigation app- By the front door to toggle your Wi-Fi on and offNFC Tag Details:- Dimensions:  1.4 x 1.4 inches, 1 mm thick- Durable, Water-proof PVC Plastic with Pressure Sensitive Adhesive- Topaz 512 NFC Chip with 480 bytes of memory, NFC Forum Type 1 Compliant- Compatible with all NFC Smartphones including Samsung Galaxy S3 and Galaxy S4- Not designed for use on metal surfaces