35mm x 41mm x 3mm Rubber O-Rings

Diameter: 35mm Diameter 2: 41mm Thickness: 3mm Material: Rubber Type: O-Ring An O-ring is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a disc-shaped cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

5–25pcs NTAG213 NFC Smart Tags – RFID Wet Inlay Sticker 144B

Stick it, scan it, and boom—you’re living the NFC dream. Protocol : ISO14443A – It plays nicely with most NFC gadgets. Frequency : 13.56 MHz – The perfect NFC frequency! Materials : PE self-adhesive + coated paper – Built tough to stick around.