S71/Bullard (USA).
- Material: HDPE
- Cone size adjustable vertically (2 front 2 back)
- Weight: 13 oz. (370g)
- American standard ANSI / ISEA: Z89.1-2014, Type I, level E, G
(Class E tested at 20,000 V for 3 minutes, leakage current ≤ 9mA)
- Quality certification meeting TCVN 6407:1998

S61P / Bullard (USA)
- Material: HDPE plastic
- Adjust size with buttons
- The helmet cage has 4 shock absorbing bands
- 20kV insulation according to American Class E ANSI Z89.1 standard
- Withstand voltage of 3500VAC/5 minutes at industrial frequency
- Breakdown voltage > 70kV; Cone thickness ≥ 2mm
- Standards: ANSI Z89.1 Class E&G, EN-397, TCVN 6407
- Color: White, Yellow

S61R / Bullard (USA)
- Material: HDPE plastic
- Adjust size with knob
- The helmet cage has 4 shock absorbing bands
- 20kV insulation according to American Class E ANSI Z89.1 standard
- Withstand voltage of 3500VAC/5 minutes at industrial frequency
- Breakdown voltage >70kV; Cone thickness ≥2mm
- Standards: ANSI Z89.1 Class E&G, EN-397, TCVN 6407
- Color: White, Yellow

C30 / Bullard (USA)
- Material: PP plastic
- Adjust size with buttons
- The helmet cage has 6 shock absorbing bands
- 20kV insulation according to American Class E ANSI Z89.1 standard
- Withstand voltage of 3500VAC/5 minutes at industrial frequency
- Breakdown voltage >70kV
- Cone thickness ≥2mm
- Standards: ANSI Z89.1 Class E&G, EN-397, TCVN 6407
- Color: White, Yellow

C30 / Bullard (USA)
- Material: PP plastic
- Adjust size with knob
- The helmet cage has 6 shock absorbing bands
- 20kV insulation according to American Class E ANSI Z89.1 standard
- Withstand voltage of 3500VAC/5 minutes at industrial frequency
- Breakdown voltage >70kV
- Cone thickness ≥2mm
- Standards: ANSI Z89.1 Class E&G, EN-397, TCVN 6407
- Color: White, Yellow

S51P / Bullard (USA)
- Material: heavy-duty HDPE plastic
- Adjust size with buttons
- The helmet cage has 4 shock absorbing bands
- 20kV insulation according to American Class E ANSI Z89.1 standard
- Withstand voltage of 3500VAC / 5 minutes at industrial frequency
- Breakdown voltage >70kV
- Cone thickness ≥ 2mm
- The front has a flat logo sticker
- Standards: ANSI Z89.1 Class E&G, EN-397, TCVN 6407

S51R / Bullard (USA)
- Material: heavy-duty HDPE plastic
- Adjust size with twist lock
- The helmet has 4 shock absorbing bands
- 20kV insulation according to American Class E ANSI Z89.1 standard
- Withstand voltage of 3500VAC/5 minutes at industrial frequency
- Breakdown voltage >70kV
- Cone thickness ≥ 2mm
- The front has a flat surface to stick the logo
- Standards: ANSI Z89.1 Class E&G, EN-397, TCVN 6407