Lapel Clip-On Near Fixation LEDs604600
Shipping calculated at checkout.
These Lapel Clip-On Near Fixation LEDs provide very focused fixation targets. Blinks with one red and one green LED. These clips feature spring-loaded backs with silicon buttons to hold fast. Each uses two AG3 watch batteries. Twist to turn on/off. Sold as a package of 3.
Dimensions: 4 mm diameter.