The SG-WT4027050-01R Zebra WT4090 / WT41N0 Arm Sleeve is a 5 pack of assembly parts designed specifically for Zebra scanners. Made in the United States, these black sleeves provide a comfortable and secure fit for the scanner's arm, ensuring optimal performance and longevity. Ideal for use with Zebra scanners, these arm sleeves are a reliable and essential accessory for any barcode scanning operation.