Tonar plastipap antistatic record inner sleeves (25 pieces) are made of super antistatic plastic paper reinforcement inside the plastic. This combination gives you both a dust free anti-static protection for your valuable records as well as additional strenght to avoid folding and creasing of the sleeves when sliding the sleeve in and out of the record album. This model 5311 plastipap is suitable for LP records only (12 inch-30 cm).