Rite in the Rain No. BK99 Mechanical Pencil Black Micro Cases but do they also filter

but do they also filter the same particles as the PARTICLEMAX P3 VIRUS FILTER

Blunt Impact testing according to AR-PD-10-US (@ 10fps less than 150 g)

plant food or glass cleaner

Meets all requirements under EN 136:1998

The moulded-in loop allows it to be secured by carabiner lanyard

Rite in the Rain No. BK99 Mechanical Pencil Black Micro Cases but do they also filterFEATURES TOUGH LEAD The hefty 1. 1mm lead is not only tough, it writes smoothly on Rite in the Rain and other papers. SECURE FLEXING TIP Patented flexing tip grips tightly so lead wont wobble, twist, or fall out in the field. DURABLE BARREL This strong thick barrel survives the toughest conditions and fits comfortably in your hand. SPECIFICATIONS BARREL COLOR: Black MATERIAL: Strong Resin FEATURES: Pocket Clip LEAD COLOR: Black POINT SIZE: 1. 1mm HB