3Dresyn HE has these features and benefits:

• hard and elastic HE, 100% foldable without breaking
• synthetic resin source
• medium tensile strength <15 MPa
• medium hard (Young modulus <20 MPa)
• elongation >50%
• durable
• low viscosity
• very high resolution 
• very low shrinkage
• printable by most commercial and professional SLA DLP & LCD 3D printers
• organo-tin free