Tenba Presentation Case PRESTA 1418 - Small (635-303) As they say, it's all in the presentation. Keep your work neat and protected with this portfolio case. The hand strap quickly converts to a shoulder strap by adjusting the two ends of the webbing, and a comfortable leather hand grip slides over the strap. The hand strap quickly converts to a shoulder strap by adjusting the two ends of the webbing, and a comfortable leather hand grip slides over the strap.