TimberTech® Impression Rail Express® 4″ Post Sleeve Height:48 Inches Can be applied to all Size:1 3 8 2 1 2 Can be applied to all wood types Application Odie’s Concentrate Water Window 1% 99% Counters 5% 95% Floors 5% 95% Sinks 5% 95% Bathroom 5% 95% Carpets 5 20% 80 95% Jewelry 10% 90% Stove Tops 10% 90% Exhaust Hoods 10% 90% Upolstery 10% 90% Tape Residue 10% 90% Pre Wash Spot Removal 15% 85% Oil Spots 20% 80% Ovens 25% 75% Grease Traps 25% 75% Air Freshener 1 25% 75 99% Dishwashing Liquid 15 30% 70 85% Detergent 20 30% 70 80% Slides over structural 4x4 wood posts The TimberTech Impression Rail Express Post Sleeve 4" x 4" can slide over a nominal 4x4 wood post or TimberTech Secure Adjustable Mount Post (both sold separately) to cover the product that adds stability to the railing system and in order to have railing match the Impression Rail Express Railing System