Howard Leight Impact Sport Electronic Earmuff 31 101103107 Holes in the top of Holes in the top of each cone can be used for crime scene flags Gun fit: Sig Sauer P229R ITI M3 Sig Sauer P229R ITI M3X Sig Sauer P229R Nightstick TWM 850 Sig Sauer P229R Nightstick TWM 850S Sig Sauer P229R Streamlight TLR 1 Sig Sauer P229R Streamlight TLR 1HL Sig Sauer P229R SureFire X200 Sig Sauer P229R SureFire X300 Sig Sauer P229R SureFire X300U Sig Sauer P229R Inforce APL Sig Sauer P229R Nightstick TWM 350 Sig Sauer P229R Nightstick TWM 350S providing more natural listening and enhanced communication Actively listens and automatically stops amplification when ambient sound exceeds 82dB