Overview Reviews Product Description W-SERIES POWDER BULBS (APPLICATORS) ARE OFFERED IN 3 CONVENIENT SIZES, FOR DUSTING DRY METHOD POWDER DURING INSPECTION. W-PB'S ARE MADE FROM LATEX RUBBER, SO THEIR SUITABLE FOR HOT OR COLD CLIMATES. Product Videos Custom Field Product Reviews Write a Review Write a Review × Western Instruments Powder Bulbs (Applicators) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *