Blizzow Desk Book Stand Holders for Reading Hands Free, Durable Metal Adjustable Book Stand, Sturdy Lightweight Foldable Portable Bookstand -Cookbook, Recipe, Tablet, Music Book, Documents (Grey) Gray auspowers_batchsix Outside diameter: 10mm

Outside diameter: 10mm

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Blizzow Desk Book Stand Holders for Reading Hands Free, Durable Metal Adjustable Book Stand, Sturdy Lightweight Foldable Portable Bookstand -Cookbook, Recipe, Tablet, Music Book, Documents (Grey) Gray auspowers_batchsix Outside diameter: 10mmBlizzow Desk Book Stand Holders for Reading Hands Free, Durable Metal Adjustable Book Stand, Sturdy Lightweight Foldable Portable Bookstand Cookbook, Recipe, Tablet, Music Book, Documents (Grey) Adjustable Metal Reading Rest Tablet Study Room Book Holder Foldable Cookbook Stand Feature: Hands free and no assembly required, make you enjoy learning or working. The reading book holder can be adjusted at multiple angles, to prevent children from myopia.