Horizontal-Hole Cable Railing Post: This horizontal-hole cable railing post measures 42 in in height, pre-drilled with 12 pairs of horizontal holes, spaced 3.31 in apart. Designed for level surfaces/deck railing protection to help protect you and your family. Note: This upgraded version has adjusted hole quantity and spacing vs. the previous version. please verify hole positions and count when repurchasing or matching parts. Steel cable not include Sturdy and Durable: Our cable handrail post is made of high-quality SUS304 stainless steel, offering excellent rust resistance and corrosion protection for long-lasting durability. However, it is not recommended for coastal applications Compliant with Regulations: The horizontal holes are spaced 3" apart. Typically, the span between two posts should not exceed 4 feet to pass the 4" ball test Easy Installation and DIY: This deck railing post includes horizontal and curved supports, suitable for various hole types in railing posts. It is compatible with square and round pipe handrails, allowing for DIY customization of handrail angles Multi-Scene Protection: Our cable rail post is suitable for both indoor and outdoor protection, including decks, stairs, porches, fences, patios, balconies, gardens, residential buildings, commercial offices, hotels, garages, and more