175Pcs Waveform Spring Washer Three Wave Type Elastic Curved Gasket Pad Assortment. Features: 1. Good Corrosion Resistance, It Can Be Used in a Humid Environment. 2. Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection. 3. This set is organized by size in a transparent storage case for quick access and protection. Specification: Material: Metal; Color: Black; Package Included: Item    Size    Quantity; Waveform Washer    3*6*0.4mm    15Pcs; Waveform Washer    4*8*0.25mm    15Pcs; Waveform Washer    5*10*0.3mm    15Pcs; Waveform Washer    6*10*0.3mm    15Pcs; Waveform Washer    8*12*0.3mm    15Pcs; Waveform Washer    10*15*0.3mm    10Pcs;; Waveform Washer    12*18*0.3mm    10Pcs; Waveform Washer    14*21*0.3mm    10Pcs; Waveform Washer    15*21*0.3mm    10Pcs; Waveform Washer    16*21*0.3mm    10Pcs; Waveform Washer    25*31*0.4mm    10Pcs; Waveform Washer    23*29*0.3mm    10Pcs; Waveform Washer    21*27*0.3mm    10Pcs; Waveform Washer    19*25*0.3mm    10Pcs; Waveform Washer    17*23*0.3mm    10Pcs; Total Quantity    /    175Pcs