The Pulsar ES eSports Arm Sleeve Palm Long is available in various sizes, but for the specific model with the manufacturer product ID "PAS04LW," here are the details: - The size labelled as "Large" (PAS04LW) has an arm length of 47cm. - The sleeve is available in sizes Medium (PAS04MW), Large (PAS04LW), and Extra Large (PAS04XLW).

The product sold, the Pulsar ES Arm Sleeve, part number PAS04MW, is available in a variety of sizes, but the specific size mentioned in the sources is the "Medium" (M) size.

The size of the Pulsar eS Arm Sleeve with product ID PAS04MW, labelled as "Palm Long", is available in a range of sizes, but the specific product page shows that there is at least one size M available. To determine your exact size, you should consult the manufacturer's sizing chart, which can usually be found on the product page or in the product description.