It is a glow stop.

At first, you can see the direction of the device well, making it easier to get hit.

It can also be used for fish collection, and is effective when used as a glowing ball with both ends hidden by a black tube.

Contents
Light emitter x 2

Desiccant x 1 bag

Transparent floating rubber × 1 set (small) / Orange floating rubber × 1 set (medium)

Color
yellow

specification
Single use type

Emission time
About 3-4 hours

Size / weight (except for the top part)
Small: shaft diameter 2.2mm x overall length 16.5mm x ball diameter 4.5mm / 0.08g

Middle: Shaft diameter 2.9mm x Overall length 23mm x Ball diameter 6mm / 0.21g

Viewing distance
Small: 10m

Middle: 15m