Product 111150. Larva maggot Chartreuse fluorescent size approx. 20 mm is sold in 10 pcs bags. A soft watery stretchy creature. Length straightened approx. 20 - 23 mm, thickness max. n. 6 - 6.5 mm. Perch fly fishing Angling. Actually, that caterpillar is much more chartreuse than in the picture, even the excellent yellowish chartreuse. In the lower images in UV light in dark and light.