Material: Polyester, 316 stainless steel. Size: The height can be adjusted from 83cm/32.7inch to 130cm/51inch. Features: Corrosion resistant and durable in saltwater environments. Excellent application: Perfect for smaller ribs/inflatable boat where there is not enough space to fit a ladder. Buy with Confidence: Package comes with 1 pack Inflatable Boat Boarding Ladder. We highly value your shopping experience. Any questions please feel free to contact us without hesitation.